| 39-397 25.4 mm Dia. Zinc Selenide Protective Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-497 75 mm Dia. Zinc Selenide Protective Flat Window; t=6 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 43-400-000 0.5 in Dia. UVFS Single Surface Flat Window; t=0.13 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 01-913-000 1 in Dia. UVFS Single Surface Flat Window; t=0.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 01-914-000 2 in Dia. UVFS Single Surface Flat Window; t=0.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 47-574-000 4 in Dia. UVFS Single Surface Flat Window; t=0.75 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 01-611-000 4 in Dia. UVFS Single Surface Flat Window; t=0.75 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 65-879-000 10 in Dia. UVFS Single Surface Flat Window; t=1.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 10Q20-NL 25.4 mm Dia. UVFS Parallel Optical Flat Window; t=6.1 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 20BW40-30AR.14 50.8 mm Dia. N-BK7 Parallel Optical Flat Window; t=10 mm 430-700nm | Optics | Window | Flat Window | MKS/Newport | N-BK7 | Circular |
| 10CF30 25.4 mm Dia. Calcium Fluoride Parallel Optical Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | CaF2 | Circular |
| CAW10 5 mm Dia. Calcium Fluoride Parallel Optical Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | CaF2 | Circular |
| CAW13 15 mm Dia. Calcium Fluoride Parallel Optical Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | CaF2 | Circular |
| CAW17 30 mm Dia. Calcium Fluoride Parallel Optical Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | CaF2 | Circular |
| CAW18 40 mm Dia. Calcium Fluoride Parallel Optical Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | CaF2 | Circular |
| SAW29 40 mm Dia. Sapphire Parallel Optical Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| 10QW40-30AR.16 25.4 mm Dia. UVFS Parallel Optical Flat Window; t=6 mm 650-1000nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 20QW40-30AR.16 50.8 mm Dia. UVFS Parallel Optical Flat Window; t=10 mm 650-1000nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW12AR.14 12.5 mm Dia. UVFS Parallel Optical Flat Window; t=1.5 mm 425-675nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW17 40 mm Dia. UVFS Parallel Optical Flat Window; t=4 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW17AR.14 40 mm Dia. UVFS Parallel Optical Flat Window; t=4 mm 425-675nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW18 50 mm Dia. UVFS Parallel Optical Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 14OF-1.5 38.1 mm Dia. UVFS Optical Flat Window; t=10 mm Uncoated | Optics | Window | Flat Window | Standa | UVFS | Circular |
| PW0537UV 0.5 in Dia. UVFS Round Plane Optical Window; t=0.375 in Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| PW1037UV 1 in Dia. UVFS Round Plane Optical Window; t=0.375 in Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| PW2025UV 2 in Dia. UVFS Round Plane Optical Window; t=0.25 in Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| 48-133 6 in Dia. UVFS Dual Surface Flat Window; t=1 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 49-061 8 in Dia. UVFS Dual Surface Flat Window; t=1.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 39-393 25 mm Dia. Zinc Selenide Protective Flat Window; t=5 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-495 40 mm Dia. Zinc Selenide Protective Flat Window; t=4 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-401 50.8 mm Dia. Zinc Selenide Protective Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 43-412-000 1 in Dia. Zerodur Single Surface Flat Window; t=0.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | Zerodur | Circular |
| 01-915-000 3 in Dia. UVFS Single Surface Flat Window; t=0.75 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 47-575-000 6 in Dia. UVFS Single Surface Flat Window; t=1 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 31-390-000 8 in Dia. UVFS Single Surface Flat Window; t=1.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 31-394-000 8 in Dia. Zerodur Single Surface Flat Window; t=1.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | Zerodur | Circular |
| 10Q20RAR.S 25.4 mm Dia. UVFS Antireflection o-Texture Surface Parallel Optical Flat Window; t=4 mm 250-550nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 20QB20 50.8 mm Dia. UVFS Interferometer Optical Flat Window; t=12.7 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 10BW40-30AR.16 25.4 mm Dia. N-BK7 Parallel Optical Flat Window; t=6 mm 650-1000nm | Optics | Window | Flat Window | MKS/Newport | N-BK7 | Circular |
| 20BW40-30AR.16 50.8 mm Dia. N-BK7 Parallel Optical Flat Window; t=10 mm 650-1000nm | Optics | Window | Flat Window | MKS/Newport | N-BK7 | Circular |
| MGW11 12.5 mm Dia. Magnesium Fluoride Optical Parallel Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Magnesium Fluoride | Circular |
| 10GE20 25.4 mm Dia. Germanium Optical Parallel Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Germanium | Circular |
| 10CF20 25.4 mm Dia. Calcium Fluoride Parallel Optical Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | CaF2 | Circular |
| SAW13 9.5 mm Dia. Sapphire Parallel Optical Flat Window; t=0.5 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| SAW24 25.4 mm Dia. Sapphire Parallel Optical Flat Window; t=2.3 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| SAW28 38.1 mm Dia. Sapphire Parallel Optical Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| SAW32 75 mm Dia. Sapphire Parallel Optical Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| 05QW40-30 12.7 mm Dia. UVFS Parallel Optical Flat Window; t=6 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 05QW40-30AR.16 12.7 mm Dia. UVFS Parallel Optical Flat Window; t=6 mm 650-1000nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 20QW40-30AR.10 50.8 mm Dia. UVFS Parallel Optical Flat Window; t=10 mm 245-440nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| 20QW40-30AR.14 50.8 mm Dia. UVFS Parallel Optical Flat Window; t=10 mm 430-700nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW10AR.14 5 mm Dia. UVFS Parallel Optical Flat Window; t=1 mm 425-675nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW15 25 mm Dia. UVFS Parallel Optical Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW16 30 mm Dia. UVFS Parallel Optical Flat Window; t=4 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW16AR.10 30 mm Dia. UVFS Parallel Optical Flat Window; t=4 mm 250-450nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| PW0604UV 15 mm Dia. UVFS Round Plane Optical Window; t=1 mm Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| PW0737UV 0.75 in Dia. UVFS Round Plane Optical Window; t=0.375 in Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| PW2050UV 2 in Dia. UVFS Round Plane Optical Window; t=0.5 in Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| PW0508C 0.5 in Dia. N-BK7 Round Plane Optical Window; t=2 mm Uncoated | Optics | Window | Flat Window | Laser Components | N-BK7 | Circular |
| PW0725C 0.75 in Dia. N-BK7 Round Plane Optical Window; t=0.25 in Uncoated | Optics | Window | Flat Window | Laser Components | N-BK7 | Circular |
| PW1012C 1 in Dia. N-BK7 Round Plane Optical Window; t=0.125 in Uncoated | Optics | Window | Flat Window | Laser Components | N-BK7 | Circular |
| PW1524SA 1.5 in Dia. Sapphire Round Plane Optical Window; t=6 mm Uncoated | Optics | Window | Flat Window | Laser Components | Al2O3 | Circular |
| PW0511CF 0.5 in Dia. Calcium Fluoride Round Plane Optical Window; t=3 mm Uncoated | Optics | Window | Flat Window | Laser Components | CaF2 | Circular |
| PW1025CF 1 in Dia. Calcium Fluoride Round Plane Optical Window; t=0.25 in Uncoated | Optics | Window | Flat Window | Laser Components | CaF2 | Circular |
| 43-424 1 in Dia. UVFS Dual Surface Flat Window; t=0.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 68-508 25 mm Dia. Zinc Selenide Protective Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 43-404-000 0.5 in Dia. Zerodur Single Surface Flat Window; t=0.13 in Uncoated | Optics | Window | Flat Window | Edmund Optics | Zerodur | Circular |
| 32-199-000 2 in Dia. Zerodur Single Surface Flat Window; t=0.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | Zerodur | Circular |
| 69-921-000 12 in Dia. UVFS Single Surface Flat Window; t=1.5 in Uncoated | Optics | Window | Flat Window | Edmund Optics | UVFS | Circular |
| 10ZS20 25.4 mm Dia. Zinc Selenide Parallel Optical Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | ZnSe | Circular |
| 10ZS30 25.4 mm Dia. Zinc Selenide Parallel Optical Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | ZnSe | Circular |
| 05BW40-30AR.18 12.7 mm Dia. N-BK7 Parallel Optical Flat Window; t=6 mm 1000-1550nm | Optics | Window | Flat Window | MKS/Newport | N-BK7 | Circular |
| 20BW40-30 50.8 mm Dia. N-BK7 Parallel Optical Flat Window; t=10 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | N-BK7 | Circular |
| MGW13 50 mm Dia. Magnesium Fluoride Optical Parallel Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Magnesium Fluoride | Circular |
| CAW14 25 mm Dia. Calcium Fluoride Parallel Optical Flat Window; t=3 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | CaF2 | Circular |
| 05SW8-180 12.7 mm Dia. Sapphire Parallel Optical Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| 20SW8-180 50.8 mm Dia. Sapphire Parallel Optical Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| SAW11 5 mm Dia. Sapphire Parallel Optical Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| SAW12 6.35 mm Dia. Sapphire Parallel Optical Flat Window; t=0.5 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| SAW15 12.7 mm Dia. Sapphire Parallel Optical Flat Window; t=3.2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| SAW23 25 mm Dia. Sapphire Parallel Optical Flat Window; t=2.3 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | Al2O3 | Circular |
| FSW14 20 mm Dia. UVFS Parallel Optical Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| FSW18AR.10 50 mm Dia. UVFS Parallel Optical Flat Window; t=5 mm 250-450nm | Optics | Window | Flat Window | MKS/Newport | UVFS | Circular |
| PW1025UV 1 in Dia. UVFS Round Plane Optical Window; t=0.25 in Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| PW1525UV 1.5 in Dia. UVFS Round Plane Optical Window; t=0.25 in Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| PW0712C 0.75 in Dia. N-BK7 Round Plane Optical Window; t=0.125 in Uncoated | Optics | Window | Flat Window | Laser Components | N-BK7 | Circular |
| PW3050UV 3 in Dia. UVFS Round Plane Optical Window; t=0.5 in Uncoated | Optics | Window | Flat Window | Laser Components | UVFS | Circular |
| PW4037C 4 in Dia. N-BK7 Round Plane Optical Window; t=0.375 in Uncoated | Optics | Window | Flat Window | Laser Components | N-BK7 | Circular |
| PW2012SA 2 in Dia. Sapphire Round Plane Optical Window; t=0.125 in Uncoated | Optics | Window | Flat Window | Laser Components | Al2O3 | Circular |
| PW1512CF 1.5 in Dia. Calcium Fluoride Round Plane Optical Window; t=0.125 in Uncoated | Optics | Window | Flat Window | Laser Components | CaF2 | Circular |
| PP1012C 1 in Dia. N-BK7 Plane Parrallel Window; t=0.125 in Uncoated | Optics | Window | Flat Window | Laser Components | N-BK7 | Circular |
| RW28.6-14.3-3.2C 14.3 x 28.6 mm N-BK7 Rectangular Flat Window; t=3.2 mm Uncoated | Optics | Window | Flat Window | Laser Components | N-BK7 | Rectangular |
| RW50-30-12.7C 30 x 50 mm N-BK7 Rectangular Flat Window; t=12.7 mm Uncoated | Optics | Window | Flat Window | Laser Components | N-BK7 | Rectangular |
| HO-WCS-25-1 25 mm Dia. UVFS Circular Flat Window; t=6mm Uncoated | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WCS-30-1 30 mm Dia. UVFS Circular Flat Window; t=8mm Uncoated | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WCS-40-1 40 mm Dia. UVFS Circular Flat Window; t=8mm Uncoated | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| HO-WCS-40-3 40 mm Dia. UVFS Circular Flat Window; t=8mm Uncoated | Optics | Window | Flat Window | Holmarc Opto-Mechatronics | UVFS | Circular |
| 68-490 10 mm Dia. Zinc Selenide Protective Flat Window; t=1.5 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 39-394 25.4 mm Dia. Zinc Selenide Protective Flat Window; t=1 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |
| 68-510 50 mm Dia. Zinc Selenide Protective Flat Window; t=2 mm Uncoated | Optics | Window | Flat Window | Edmund Optics | ZnSe | Circular |